Explanation:
Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem.
De acuerdo al siguiente enunciado, responda: "sus funciones son similares; difieren en su origen embrionario y en su plan de construcción".
Answer:
el enunciado hace referencia a estructuras análogas
Explanation:
La estructuras análogas (por ejemplo, órganos, tejidos, etc) son aquellas que cumplen la misma o similares funciones pero que poseen un origen evolutivo distinto (es decir, no comparten un antepasado común) y son producto de la convergencia evolutiva. Por el contrario, estructuras homólogas son aquellas que se caracterizan por tener un origen evolutivo común (comparten un antepasado común), independientemente de la función que cumplan. Las estructuras análogas se caracterizan por tener diferentes orígenes embrionarios y planes de construcción distintos (es decir, las células que dan origen a este tipo de estructuras son de linajes diferentes). Un ejemplo bien conocido de estructuras análogas son las alas de mariposas y murciélagos, las cuales cumplen la misma función pero no derivan de un antepasado común.
Describe two examples of chemical weathering.
Answer:
Types of Chemical Weathering
Carbonation. When you think of carbonation, think carbon! ...
Oxidation. Oxygen causes oxidation. ...
Hydration. This isn't the hydration used in your body, but it's similar. ...
Hydrolysis. Water can add to a material to make a new material, or it can dissolve a material to change it. ...
Acidification.
QUESTION 14
Which set of terms below are most closely associated with the immune system?
A. phagocytosis and marker protein
B. pinocytosis and channel protein
C passive transport and the nucleolus
D. diffusion and the cell wall
Answer:
A. phagocytosis and marker protein
Explanation:
All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about
vertebrates? (1 point)
O These species evolved in similar environments.
O The embryos of these species require these structures to survive.
O These species share a common ancestor.
O These species have the exact same DNA sequence.
Answer:
These species share a common ancestor
1. T = tall an t = short TT and Tt would result in the following phenotype
which substance is harmful to the body when consumed (A) calcium (B) Cobalt chloride (C) iron (D) phosphorus (E) sodium chloride
Answer:
I think it's probably E, sodium chloride
Describe what occurs in each phase of mitosis.
Prophase -
Metaphase -
Anaphase -
Telophase -
Cytokinesis -
( please do not plagiarize )
Answer:
prophase- the first phase of mitosis, in which the chromatin in the cell coils into chromosomes that can be seen
metaphase- the second phase of mitosis, in which the chromosomes that were doubled become attached to the spindle fiber by their centromeres
anaphase- the third phase, where centriomeres are split apart and sister chromatids are pulled to opposite poles of the cell
telophase- the final stage of mitosis, in which sister chromatids are separated and contain identical copies of DNA
cytokinesis- a process the divides the cytoplasm and plasma membrane of a cell, resulting in two identical cells that contain their own DNA, nucleus, nuclear membrane, and plasma membrane
Explanation:
it's from my notes, but i'm not sure what you mean by no plagerizing
is chloroplast an Organ an organelle a process an organic molecule or a building block
If a population grows by 3 percent each year, the growth of the population is
A. exponential
B. linear
c. cubic
D. logarithmic
Answer:
A. (exponential) population
If a population grows by 3 percent each year, the growth of the population is exponential. Hence, option A is correct.
What is exponential growth?A function called exponential growth depicts an expansion within a population that happens at the same pace across time. If a population doubles or triples in size, you can assume that the data grows exponentially. Exponential decay is the inverse of exponential growth, in which data contracts rather than expands.
Bacteria are one of the best illustrations of exponential growth. Prokaryotic fission is a method of bacterial reproduction that takes around an hour. The population size of 100 bacteria would increase exponentially if we measured it every hour in a certain environment.
The population growth is exponential. Hence, option A is correct.
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wanna frend me on disc
Sure, what's your discord name and #
A single gene mutation results from
Answer: DNA changes in one particular gene
Explanation:
Single gene disorders are caused by DNA changes in one particular gene, and often have predictable inheritance patterns. Over 10,000 human disorders are caused by a change, known as a mutation, in a single gene. These are known as single gene disorders.
human blood types result from multiple alleles. The alleles for human blood type are written as IA, IB, and i. How many different heterozygous genotypes are possible for blood types? *
a)3
b)2
c)4
d)6
In 1838 botanist Matthias Schleiden determined that all plants are composed of cells. In 1839 anatomist Theodor Schwann proposed that all animals are composed of cells. In 1855 biologist Rudolph Virchow added to Schleiden's and Schwann's observations and proposed that all living things are composed of cells. Which statement is also part of Virchow's cell theory?
Answer:
This question lacks options, the options are;
A. All cells have a cell wall.
B. All cells arise from pre-existing cells.
C. All cells are capable of photoshynthesis.
D. All cells can develop into any other type of cell.
The answer is B.
Explanation:
The widely accepted universal cell theory is known to be contributed to by three scientists viz: Matthias Schleiden, Theodor Schwann and Rudolph Virchow.
As rightly stated in this question, Botanist Mathias Schleiden and Zoologist Theodor Schwann proposed that plants and animals are made up of cells in the year 1838 and 1839 respectively. However, in 1855, biologist Rudolph Virchow expanded the cell theory by adding that all living things are composed of cells and that these cells arise from pre-existing cells.
The collaboration of these three scientists brought about the cell theory that states:
* Cells are the basic unit of all living things.
* All living things are made up of one or more cells.
* All cells arise from pre-existing cells.
Which of these phenotypes are recessive?... check all that apply.
Ww
Straight Hairline
tt
Smooth Chin
DD
No Freckles
Detached earlobes
Answer:
tt - smooth chin
Explanation:
have a great day!
Please transcribe this DNA code into the complementary
RNA code.
TCG GGG CTA ATC AAG
The transcribed code for the DNA as complementary to the RNA code is AGC CCC GAU UAG_ UUC . Th the option D is correct.
What is the RNA code?The RNA code is made of four nucleotides that are adenine, guanine, the cytosine, and the uracil. The code makes a unit known as a codon which forms the amino acid. The RNA consists of a code that is kept by the cell DNA and signals the formation and end of the protein synheis.
Find out more information about the RNA code.
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Which set of values tells us if the reaction is at equilibrium
Answer:
the answer is c
Explanation:
Which is a statement about weather?
Select one:
a. The average annual rainfall is 51cm.
b. The average high temperature in springtime is 22°C.
c. The average temperature Monday was 17°C.
d. The average number of sunny days per year is 285.
Answer:
a I think
Explanation:
I'm not 100% sure
The statement about weather is the average temperature Monday was 17°C. Therefore, option (C) is correct.
What are the features of weather?Weather is the state of the atmosphere, including temperature, atmospheric pressure, wind, humidity, precipitation, and cloud cover. It differs from climate, which is all weather conditions for a particular location averaged over about 30 years.
Weather refers to the state of the atmosphere over an area at any point of time. The elements of weather and climate are the same, i.e. temperature, atmospheric pressure, wind, humidity and precipitation.
Weather is the mix of events that happen each day in our atmosphere. Weather is different in different parts of the world and changes over minutes, hours, days and weeks.
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The packing of chromatin can be regulated by either the acetylation or deacetylation of DNA.
A. True
B. False
Answer:
B. False
Explanation:
The attraction between DNA and histones occurs because the histones are positively charged and the DNA is negatively charged.
Answer:
B is your answer
Explanation:
choose all answers that apply
the cell membrane __.
is not a true organelle
contains and protects the cell
is made of a double layer of phospholipids
contains proteins that allow materials to pass through
Answer:
is made of a double layer of phospholipids
What can scientists assume about individuals with similar anatomy?
I
Answer:
Scientists compare the anatomy, embryos, and DNA of living things to understand how they evolved.
Explanation:
Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor. Other evidence for evolution is provided by analogous structures
Scientists use anatomy for the study of the evolution of DNA other organs and how they are modified.
Similar anatomy means homologous structure as they provide the information for evolved structure. They provide evolutionary evidence.
What is an analogous structure?
Organisms that have developed alongside special paths may also have analogous systems—that is, anatomical functions which can be superficially just like one another (e.g., the wings of birds and insects). Although such systems serve comparable functions, they have got pretty special evolutionary origins and developmental patterns.
Thus it is clear that scientists assume individuals with similar anatomy for evidence of evolution.
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An invasive species has entered a new ecosystem. There is nothing stopping it from growing very quickly. There is unlimited space and food for them. Will their growth be exponential or logistic
Answer:
logistic
Explanation:
im pretty sure its logistic. im so sorry if its not lol
what are soft-bodied invertebrates that usually have shells
Answer:
Snails, slugs, squids, octopuses, clams, oysters, scallops, and mussels
HURRY PLEASE I RLLY NEED THIS FOR THE MOST IMPORTANT TEST IM TAKING THIS YEAR. The diagram shows a toy car on a number line.
A line with arrowheads at both ends has ticks marks every 2 units. The tick marks for 0, 6, and 10 are labeled. A car sits above the tick mark for 2 with a dashed red line leading to the tick mark.
What is the position of the car?
–4
1
2
4
Answer:
The position of the car is +2 or simply 2
Explanation:
The position of an object is usually given from a reference position.
A number line is used to specify the position of the car in the given question.
A number line has numbers arranged on a straight line with positive and negative numbers found on both sides of zero serving at the center of the number line. Positive numbers are found to the right of zero on the number line while negative numbers are found to the left of zero onnthe number line.
In the given question, the number line has ticks marks every 2 units.
The car sits above the tick mark for 2 with a dashed red line leading to the tick mark.
Since the car is found to the right of zero on the number and sits above the tick mark for 2, the position of the car is +2 or simply 2
in your own words,what is the definition for vitamin?
please help me with this. im having writers block right now and i cant think.
Answer: vitamin is
any of a group of organic compounds which are essential for normal growth and nutrition and are required in small quantities in the diet because they cannot be synthesized by the body.
What are tiny organisms that float near the surface of freshwater and marine environments?
Answer:
These tiny creatures are referred to as "plankton."
Plankton includes plants and animals that float along at the mercy of the sea's tides and currents. Their name comes from the Greek meaning "drifter" or "wanderer."
i need help i can't tell if water gets cold faster when it's hot or when it's cold?
Answer:
It differs, in some cases, hot water may get cold faster than water at room temperature, yet it is not 100% of the time.
Quizlet It is found that many regulatory genes have been co-opted for the development of different structures, such as limbs or digits. This is an example of what type of biological research
Answer:
evolutionary developmental biology (evo-devo)
Explanation:
Evolutionary developmental biology (evo-devo) is a relatively new field of biology focused on the comparison of developmental processes between organisms in order to infer evolutionary relationships among species and understand such developmental mechanisms. This research area has shown to be very useful to understand how morphological evolution occurred. Moreover, evo-devo also shows how changes at the genome level can be translated into morphological and phenotypic changes among species/higher taxa. Evo-devo challenges the so-called 'gene-centered point view of evolution', which holds that adaptive evolution mainly operates by means of the differential survival of competing (selfish) genes.
ill give branliest
A city located in the middle of North America experiences extreme temperature changes during the year. This is an example of a what climate?
For the growth curve to continue increasing, which of these must occur?
The environment must provide a habitat for a large variety of organisms.
The organisms must migrate to a new environment.
The organisms must adapt to a new habitat.
The resources in the environment must be unlimited.
Answer:
Out of all the answer choices I would say the answer is A: The environment must provide a habitat for a large variety of organisms. i hope this helped you.
Explanation: This is because it would not make sense for the orginisms to move and we can say that the 3rd answer is true but it doesnt make the most sense and we can also eliminate the last one
Why do you think the anthropologist's job is so important?